尖齿蛇葡萄 jian chi she pu tao

Branchlets terete, with longitudinal ridges, glabrous; tendrils bifurcate. Leaves simple; stipules caducous; petiole 1.5-4 cm, glabrous; leaf blade ovate, 2.5-7.5 × 3-7 cm, glabrous, basal veins 5, lateral veins 3 or 4 pairs, veinlets inconspicuously raised, base truncate or subtruncate, margin with several, irregular, sharp, acute teeth, apex acute or acuminate. Inflorescence a corymbose polychasium, pseudoterminal or leaf-opposed; peduncle 1.3-3 cm, glabrous. Pedicel 2-3 mm, glabrous. Buds ovoid, 1.5-2 mm, apex rounded. Calyx glabrous, lobed. Petals ovate-elliptic, 1.3-1.8 mm, glabrous. Anthers oval. Ovary adnate to disk at lower part; style conical. Berry 7-8 mm in diam., 1-seeded. Seed obovoid, chalazal knot elliptic. Fl. Jun-Aug, fr. Sep-Oct.

● Shrublands, rocky places on hillsides; 2000-3200 m. Sichuan, Xizang, Yunnan.